Locomotive booster-motor apparatus



Dec. 14 1 v H. S. VINCENT LOVCOMOTIVE BOOSTER MOTOR APP RATUS Fil ed April '23, 1923 s sheets-sheet 1 H. S- VINCENT LOCOMOTIVE BOOSTER MOTOR APPARATUS Filed April 231 1925 3 Sheets-Shet 2 1,610,338 H. s. VINCENT LOCOMOTIVE BOOSTER MOTOR APPARATUS iled A ril 23, 1925 3 Shets-Sheet- 5 Dec. 14-, 1926.

IZEZVTOR A 'TTORNE Y5 Patented Dec. 14, 1926.

HARRY svmon'm', or nrnenwoon, new JERSEY, ASSIGNORTO-FRANKLIN RAILWAY SUPPLY 0012mm, A CORPORATION or DELAWARE.

. Locomorrvn BoosTEa-Moroia APPARATUS.

Application filed April 23, 1923. Serial 1m 633,830.

This invention relates t'o booster motor equipment for locomotives of the type which has been illustrated, for instance, in Patent No. 1,339,395 issued to 'HpL. Ingersoll on May 11th, 1920.) Although this patent as well as the present application illustrates the booster motor as applied to the axle and wheels of a locomotive trailer truckI wish it to be understood thatmy-present inven' tion is not intended to be limited'to such an arrangement ina'smuchasit could be applied equally well to an. arrangement I wherein the booster motor was adapted to drivethe'ja jxle and wheels atanyotherlocation either-Tori the locomotive or on the tender} The present invention relates primarily. to the manner of andthemeans for handling'and disposing of the exhaust steam from thebooster motor. r Before continu ng with this specification it speeds but are not intended to operatesat higher speeds. They are always arranged therefore to' be entrained and disentrained from the axle-which they drive as occasion demands. It will therefore i be seen that there will be many more or less long periods of time duringwhich the booster motor will be inoperative While the'booster motor -is operating it has'been proposed to mingle its exhaust steam with the exhaust steam from the. locomotive. and to this 'end a. special pipe has been pr'ovidedto carry the booster exhaust to the locomotive nozzle. This 3 steadies the draft during such times as the locomotive'is working hard and accomplishes other useful functions which it is not necessary to mention at the present time since-they form 110 part. of the invention herein.

7 With the'fore'goi'ng in mini-the chief ob-' -ject of my invention-will be better underv stood, the same being the provisionof means for automatically keeping the booster ex-i 'haust line closed during such times as the booster is inoperative Y and automatically opening said line whenever the booster is called into operation and this forthe reasonthat during such times as the booster is inoperative the locomotive exhaust would be undesirably blanketed by the suction of my invention through the booster exhaust pipe were such.

pipe to be kept open at such times.

A further object ofthe invention is to provide means of the character just above specified which is under the control or influence of the controlling devices or control ling system provided for the booster motor.

These together with such other objects, as

are incident to my invention ormay appear hereinafter I attain by means of a oonstruc-- tion which I have illustrated in preferred form in the accompanying drawings where.

1n: Fig. 1 is a partial side elevation ofa loc'omotive illustrating my improvement applied thereto; Fig.2 is a'diagrammatic layout of the booster-controlling mechanism with my improvement associated therewith and -Figs. '3; 4 and 5 jareenlarged side plans and sectional-views'o one o'f the principal parts Referring to the drawings it will be seen the forward end of. -'which is shown as broken away although-it will be understood that I have applied the locomotive booster motor B to the axle 1 of the trailer truck 2' frame 3, The axle lcarries a gear 4 located at some convenient point between the. wheels actuate the driving pinion 7 which -can be entrained or dise'ntrained from the gear 4: by,

means of the movable idler gear 8. An examination of Fig. 52 will show that theidler gear 8 is mounted'npon a rocking member reservoir 12 and is controlled by means of the reverse lever; 13 with its so called booster latch 14:, the member 15 pivoted at 16 and the reverse lever pilot valve indicated as a whole by the reference character C. When the reverse lever. 13 is" moved into the forwardcorner of the quadrant 17 as illustrated in Fig. 2 and the latch lei is swung upward- .5. The cylinders 6 of" the booster motor 1y to the position in which 'it is shown the right hand end of member 15 will be forced downwardly'to act upon the plunger 18in the reverse lever pilot valve C. This will close exhaust valve 19 and open valve 20 so that pressure fromthe reservoir 12 may flow out through the pipe 21, through the reverse lever pilot valve C and into pipe 11.

'In this way the booster controlling system is placed in the proper condition to perform its'various functions. A much more detailed description of the general arrangement here- -in disclosed will be found in. the patent above. mentioned the matter herein given bemg simply suilicient for the purpose of properly dlscloslng my present invention wh :ch

- in and of itself has nothing to do with the booster controlling system so far in' use. This art has become well established at the present time and. it is therefore thought unnecessary to burden the present application with more detail than is necessary for the present disclosure.

At the same time that the air pressure has actuated the entraining motor A it has entered the preliminary, booster throttle D through the pipe 22 where it acts to open the valve 23 thereby permitting steam to flow in relatively small quantities through the by-pass 2 L around the main booster throttle 25 the line of flow being in the direction of the arrows. Thepipe 26 comes from the dome and the pipe 27 leads to the booster cylinders. The part of the apparatus just described ensures easy meshing of the gears 8 and 4 since the relatively smallquantity of steam preliminarily supplied through the by-pass 24: reciprocates the booster cylinders slowly during the time that entrain- 'ment is taking place.

communication between the pipes 11 and 28 is established so that air pressure can reach motive throttle has been opened.

the dome pilot valve E. Herc further progressof air pressure is blocked until the loco- Just as soon however as the locomotive throttle has been opened pressure from the dry pipe 29 is conducted to the dome .pilot valve E through the tubing 30 and this pressure establishes communication between the pipes 28 and 31 in a manner the details of which need not be fully described. Pressure from the pipe 31 is conducted to the booster throttle operating cylinder F through the conduit 32. In a manner now well understood in this art the throttle cylinder or throttle operating cylinder F opens the booster thrott e 25 to admit full operating pressure to the booster cylinders. Practically as soon as the booster is put into operation in the manner thus described it is necessary toclose the booster cylinder cocks 33. This is accomplished by utihz mg the pressure irom pipe 31 through plpes As soon as entrainment has taken place 34 and 35, the latter leading td anoperating cylinder 36 which, through suitable coupling rods 37 is adaptedto close the-cylinder cock 33 which are otherwise normally springheld" in open position. None of this controlling system is gone into'in very great detail here for the reason that it is now all well known inthe art and forms no part of the present invention.

After the booster has been placed in .operation the exhaust steam is conducted through the conduit 38' to a housing 39 ate a vacuum in the exhaust line 38 whichv would tend to pull in air through the cylin This air would, jacket orv blanket the draft from the nozzle 40 with der cocks 33.

ill efl'ectsupon motive. I

In order to overcome .this I introduce the the operation 'ot' the loco- By reason of this dis-' valve structure G into the exhaustline 38.

The details of this valve structure are best shown in Figs. 3 to 5 inclusive although reference must be made to for a showing of the proper connections.

To the plug yalve 4201' ratherto the stem 43 ofthe plug valve 42 is attached an op'erating crank 44from which a piston rodjflz) enters the cylinder 46. The spring l'T;ac't-, ing against the piston 48 normally holds this valveinits closed position shutting off com munication from the booster exhaust to the.

locomotive nozzle. As soon as the booster is operatmgliowever and air pressure is present in the pipe. 11'or in some other portion of the booster controlling system as may be.

desired air will flow through the pipe 49 to the base of the piston 48 opposite to that upon which the spring l7 bears. The spring will therefore be compressed and the crank In this way therefore it will be seen that I provide for an automatic opening of the booster exhaust line whenever the booster is placed in operation and an automatic closure-thereof whenever the booster motor is not in operation. Furthermore I have placed this automatic arrangement under 44 will rotate the plug valve to the open position illustrated in Figs- 3 and. 5.

the influence of the controlling system for I the locomotive booster motor.

It-might be mentionedthat I have shown I the usual timing reservoir 50 in the cylinder cock closing line 34 which is simply for the purpose of holding back a. little on the moment when the cylinder cocks will be closed. I claim: V l 1. In a locomotive, the combination with its exhaust line, of a steam operated booster motor, a line for discharging thebooster ex haust with the locomotive exhaust, means normally closing the "booster exhaust line when thebooster is inoperative, and means for automatically opening .said line when the booster is operating. p

2. In a locomotive, the combination with its exhaust line, of a steam operated booster motor, a control system for the booster, a line for discharging the booster exhaust with the locomotive exhaust, and means under-the influence of the .control system for opening the booster exhaust line whe n'the booster is 1 15 to be operated and closing it when the booster ceases to operate.

3. In a locomotive, the combination with its exhaust line, of a steam operated boostermotor, a control system for the booster, a

line for discharging the booster exhaust with the locomotive exhaust, means normally ,the booster exhaust into the stack around the locomotive nozzle, means normally closf ing said line when the booster is inoperative, and means for automatically opening said line when the booster is operating.

5. In a locomotive, the combination with its exhaust stack, of a steam operated booster motor, a line for discharging the booster exhaust into .the stack around the column of the locomotive exhaust, means adapted to [close said line when the booster is inoperative, and means for automatically opening sald'line when the'booster is-operatirig- 6. In a locomotive, the combination with its exhaust line, of a steam operated booster motor, a fluid actuated control system for I the booster, a line for discharging the booster exhaust Withthe locomotive exhaust, anormally closed valve for controlling the booster exhaust line, and means for holding said valve in open position, said means being actuated by the pressure in the fluidpcontrol system-when the booster is operating.

7. In a locomotive, the combination with its exhaust line, of a steam operated booster motor, an air actuated control system for the booster, a line'for discharginv the booster.

exhaust with the locomotive ex aust, means normally closing" the booster exhaust line when the booster is inoperative, and means under'the influence of the air control system for opening said line'when the booster is operating. p

8. In a locomotive, the combination with its exhaust line, of a steam operated booster motor, an air actuated controlsystem for the booster, a reverse lever pllot valve for said system, a line for discharging the booster exha'ust with the locomotive exhaust, means for normally closing the booster exhaust line when the booster is inoperative,'and means for opening said line,'-said last'means being actuated by the pressure in the controlling system'after the reverse lever pilot valve has been opened.

In testimony whereof, I have hereunto signed my name.

HARRY s. VINCENT. 

